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SigmasTek  |  SKU: BW-4898

Best Power FERRUPS MD 500VA UPS High Performance Replacement Battery

Sale price $92.48 USD Regular price $134.10
Shipping calculated at checkout.

➤ OEM-spec replacement battery for Best Power FERRUPS MD 500VA UPS

➤ Advanced AGM Technology for stable and efficient power delivery

➤ Spill-proof, maintenance-free design for easy installation

➤ U.L. Recognized and CE Certified for safety and reliability

➤ Brand new with 1 Year warranty and full compatibility


📦🚀 FAST SHIPPING: Usually ships same day if ordered before 2 PM EST

⚠️ Quick Reminder

🔹 Please ensure the original battery model number is listed in our product description and that your device model number matches for compatibility.
🔹 We only supply the batteries shown in the images. Device images are provided for reference only.

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Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.
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Battery Care Guide

Battery Usage and Maintenance Guidelines 🔋

Please read the following instructions carefully before using your new battery. Proper adherence will help ensure optimal performance and extended service life.

1. Cordless Phones, PDAs, and Power Tools (NiMH, NiCd, Lithium-Ion) 📱

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Operate the device until the battery reaches approximately 20% capacity.
  • Avoid premature recharging.
  • Do not allow the battery to fully discharge during the initial cycles.

Post-Conditioning

  • Recharge the battery only when necessary.
  • These batteries are capable of approximately 500 charge cycles:
  • Once daily → ~500 days
    Twice daily → ~250 days
    Note: Even a partial recharge is considered a full cycle.

2. Sealed Lead Acid (SLA) Batteries 💡

  • No conditioning required.
  • Maintain the battery in a fully charged state; avoid complete discharge.
  • Capable of 300–400 charge cycles.
  • Expected service life: 2–3 years, depending on usage conditions.

3. Laptop Batteries (Lithium-Ion) 💻

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Charge fully, then discharge to approximately 20% capacity.
  • Avoid complete discharge, as some devices may not detect a fully drained battery.

Post-Conditioning

  • Minimize frequent plugging and unplugging.
  • Allow the battery to discharge moderately at least once per month to maintain optimal performance.
  • Occasional cycling is recommended to sustain battery health.

Professional Recommendation

Adhering to these guidelines will enhance battery longevity and ensure reliable performance.

For further assistance regarding your battery or order, our customer support team is available to provide guidance.

Delivery and Shipping

Everything You Need to Know About Shipping with BatteryWeb (USA)

We know reliable delivery matters when you need power fast. Here’s how BatteryWeb makes shipping easy across the USA:

🚚 Shipping & Delivery

Most orders ship next business day (some products like sealed lead acid may take a little longer).

Same-day shipping available if you order before 11:59 AM (delivery depends on the carrier).

We ship nationwide using FedEx, UPS, USPS, DHL, and regional ground carriers.

Shipping costs are calculated automatically at checkout based on weight, distance, and carrier.

Transit times shown are estimates only (business days, no weekends/holidays).

🌍 Shipping Restrictions

Lithium batteries cannot be shipped by USPS or air. They must go via FedEx Ground, UPS Ground, or DHL Ground.

PO Box deliveries are only available via USPS.

At this time, we do not ship lithium batteries to Puerto Rico. NiMH, NiCd, and Alkaline can be shipped.

📦 Important Notes

Double-check your shipping address! If an incorrect address is used and the order is returned, re-shipping costs are the buyer’s responsibility.

If a product is temporarily out of stock, we’ll notify you right away with the expected restock date—or issue a refund if you prefer.

💲 Currency & Pricing

All prices are shown in USD.

Orders shipped outside the USA may be subject to local taxes, customs fees, or import duties. These are the buyer’s responsibility.

⚡ At BatteryWeb, we’re committed to getting your batteries delivered quickly, safely, and affordably—so you’ll always have the power you need, when you need it.

Disclaimer

⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

🔹 Our products are generic replacement parts and are not affiliated with, endorsed by, or manufactured by the original equipment manufacturers (OEMs).


Volts & Amps

12 Volts | 35 AH

Terminal Type

Nut & Bolt

Replacement Best Power FERRUPS MD 500VA Battery — Compatible with Best Power FERRUPS MD 500VA

When your Best Power FERRUPS MD 500VA needs a reliable replacement, choose this high-performance UPS battery engineered for compatibility and steady operation. Meeting or exceeding OEM SLA battery specifications, it delivers the dependable backup power required for UPS systems, emergency applications, and battery-powered tools. This long-lasting battery is a smart choice to restore the full capability of your Best Power FERRUPS MD 500VA unit.

Key Specifications

  • Compatibility: Best Power FERRUPS MD 500VA
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Design: High Rate Discharge Design
  • Maintenance: Maintenance-Free Design with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Applications listed: Emergency Power Supply; Battery Powered Tools
  • Additional product info: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 35 AH
  • Terminal type: Nut & Bolt
  • Brand references: Best Power

Benefits

  • Durability: Robust AGM construction and spill-proof, maintenance-free design offer long-term reliability in UPS and emergency configurations.
  • Long life: High rate discharge characteristics deliver strong performance over repeated discharges, making this a long-lasting battery replacement option.
  • High performance: Built to meet or exceed OEM standards, ensuring your Best Power FERRUPS MD 500VA recovers original runtime and handles load demands effectively.
  • Certified quality: U.L. Recognized and CE Certified for safe, compliant use across multiple environments.
  • Wide application: Ideal for UPS units, emergency backup power, and battery-powered tools where a dependable replacement UPS battery is required.
  • Easy fit: Nut & bolt terminals allow secure connections and straightforward installation during routine maintenance or emergency replacement.
  • Assured value: New, factory-fresh condition with a 1 year warranty provides confidence in purchase and long-term protection.

Restore trusted backup power to your Best Power FERRUPS MD 500VA with this reliable, high-performance replacement UPS battery. Order today to secure continuous protection and extended runtime.


Payment & Security

Payment methods

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